How to stub a Typescript-Interface / Type-definition?

I work with Typescript on an AngularJS 1.X project. I use different Javascript libraries for different purposes. To unit-test my source I would like to stub some dependencies using the Typings (= interfaces). I don't want to use the ANY-type and neither to write an empty method for each interface method.

I think the short answer is that this is not possible in Typescript, as the language offers no compile-time or run-time "reflection". It's not possible for a mock library to iterate the members of an interface.